Investigation of infertility in cows by endocrine provocation tests at the Bangladesh Agricultural University dairy farm
1991
Alam, M.G.S. | Ghosh, A.
Reproductive performances were studied from the records of the 47 cows of different breeds. About 29.41% heifers came into first oestrus at the age of 4 years, whereas 7.83% 19.16%, 17.67%, 25.49% heifers started their sexual cycle at the age of 3,5,6 and 6 years respectively. All heifers were found to be acyclic at the age of 2 years but 92.16%, 72.55%, 43.14% and 25.49% were acyclic at the age of 2,3,4,5 and 6 years respectively.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил Bangladesh Agricultural Research Council